We divide 91428 by 20
We want to figure out the number of times 91428 can be divided by 20.

Moving on to step 1:
9 divided by 20 is 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 20

Step 2:
The number 20 fits into 91 4 times, leaving a remainder of 11.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 80 from 91 to get 11.
Take the next digit (4) from the dividend and append it to 11, then repeat: 114 / 20

Step 3:
If we divide 114 by 20, we get 5 and a remainder of 14.
Record the quotient 5 as the next digit in the result. 
Result so far: 45.0
Subtract 100 from 114 to get 14.
Fetch the next digit (2) from the dividend, attach it to 14 and continue: 142 / 20

Step 4:
20 goes into 142 7 times with a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 457.0
The remainder is 2 after subtracting 140 from 142.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 20

Advancing to step 5:
20 can be fit into 28 1 times, resulting in a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 4571.0
Subtract 20 from 28 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 6:
If we divide 80 by 20, we get 4 and a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 4571.4
Subtract 80 from 80 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 4571.4
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
If we divide 0 by 20, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 4571.4
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 4571.4, and the remainder is 0.0.